culture, tradition, religion, ethnic, are all part of that. i talked about alliances. that is why alliances are important. you work within those systems. to effect change and influence change. there are some things going on in the world today that are disgusting, that are despicable, that we hate. but we have limitations as to what we can do to change that. we should always be about helping the people who want to change it. we have limitations. and great powers run into very difficult times when they do not recognize that they too have limitations to their power. all individuals have limitations. nations must be wise enough to understand this. host: as senator chuck hagel, in his speech, and two years ago -- as you hear the words he talks about the limits of power. that echoed what the president said that in 2008 when he was running for the white house. guest: i think that is right. i think one of the conditions that president obama and his team -- a lot of demands and expectations of rumba world and a lot of challenges. america's role is not just to knock back a chall